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Determination of sodium and other impurities in alkoxysilanes by square-wave voltammetry

Shigeru Saito - No affiliation found

1992/03/20 Full-length article DOI: 10.1016/0003-2670(92)85104-E Journal: Analytica Chimica Acta

Abstract:

AbstractThe determination of sodium concentration in acetonitrile and in acetonitrile-alkylalkoxysilane mixtures was investigated by using the static mercury drop electrode and square-wave voltammetry. Direct square-wave voltammetry was used over the range 10–100 μM Na+, and square-wave anodic stripping voltammetry was used in the range 1–10 μM Na+. The detection limit in the anodic stripping mode was found to be 0.3 μM. Further, the behavior of impurities in acetonitrile-alklalkoxysilane mixtures was investigated qualitatively.